Whoever donates sperm signs a contract not to donate at different clinics, although this is not checked nor enforced.

The authorities found out the man in question, who has not been named due to privacy laws.

The donor of the 102 children was tracked down and told a Dutch daily that his motive ‘was not to have as many children as possible’.

He said: ‘I just like to do it and to make people happy. It makes me feel helpful. The gratitude of doctors and prospective parents is great.’

The man said: ‘Clinics are already happy if they have a donor who passes the screening.’ He said that his sperm was ‘often immediately used’.

The man reportedly donated at 11 clinics (Picture: Getty)

An investigation has been launched in the Netherlands after an analysis of the Artificial Insemination Data Foundation, which oversees the data of sperm donors, and the Dutch Ministry of Public Health warned that oversight is lacking in fertility clinics.

Another man was also caught having donated his sperm to multiple clinics, but he had fathered only two children.